Science Advances

Supplementary Materials

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  • fig. S1. N2 adsorption-desorption isotherm of AlF3 powder.
  • fig. S2. Fabrication of LAFN.
  • fig. S3. Digital photo of 20 μl of ethylene carbonate/diethyl carbonate electrolyte dropped onto Li foil and LAFN electrode.
  • fig. S4. Transmission electron microscopy characterization of pristine LAFN.
  • fig. S5. Morphology of LAFN after symmetric cell cycling.
  • fig. S6. Morphology of LAFN after symmetric cell cycling.
  • fig. S7. Morphology of LAFN after symmetric cell cycling.
  • fig. S8. Morphology of LAFN after symmetric cell cycling.
  • fig. S9. Morphology of LAFN after directly plating Li metal onto its surface.
  • fig. S10. EIS performance of Li foil and LAFN symmetric cells after different cycles.
  • fig. S11. EIS performance of LAFN symmetric cells after stripping different percentages of capacity from one side to the other.
  • fig. S12. Enlarged XRD profile of the dotted box in Fig. 3D.
  • fig. S13. XPS of LAFN.
  • fig. S14. Voltage profile of Li foil and LAFN symmetric cell during the 1st, 10th, 50th and 100th cycles, with a current density of 1 mA cm−2.
  • fig. S15. Long-term cycling stability of LAFN electrode.
  • fig. S16. Symmetric cell cycling performance of LAFN under a current density of 3 mA cm−2.
  • fig. S17. Symmetric cell cycling performance of LAFN under a current density of 5 mA cm−2.
  • fig. S18. Voltage plateau comparison.
  • fig. S19. Symmetric cell cycling performance of LAFN under a current density of 20 mA cm−2.
  • fig. S20. Symmetric cell cycling performance of LAFN under metabolic current densities.
  • fig. S21. Symmetric cell cycling performance of LAFN under an areal capacity of 3 mA∙hour cm−2.
  • fig. S22. Electrochemical performance of LCO/LAFN cells.
  • fig. S23. Enlarged voltage profile of LCO full cell batteries.
  • fig. S24. Electrochemical performance of LCO/LAFN cells.
  • fig. S25. Electrochemical performance of LTO/LAFN cells.
  • fig. S26. Electrochemical performance of LTO/LAFN cells for CE testing.

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